Pneumatic 3-1/2 in. 21 Degree Full Round Head Framing NailerUtilizing all magnesium housing, Milwaukee's 3 1 2 in. Full Round Head Framing Nailer loads 20 degree to 22 degree full round head plastic collated nails 2 in. to 3 1 2 in. in length with diameters 0. 113 in. to 0. 148 in. Its easy select trigger lets you move quickly from single nails placement to contact actuation for maximum control and application versatility. The easy read and tool free depth of drive lets you quickly adjust the depth setting